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Showing content from https://cloud.google.com/nodejs/docs/reference/firestore/latest/firestore/vectorqueryoptions below:

Interface VectorQueryOptions (7.11.0) | Node.js client library

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Specifies the behavior of the VectorQuery generated by a call to .

distanceMeasure: 'EUCLIDEAN' | 'COSINE' | 'DOT_PRODUCT';

Specifies what type of distance is calculated when performing the query.

distanceResultField?: string | firestore.FieldPath;

Optionally specifies the name of a field that will be set on each returned DocumentSnapshot, which will contain the computed distance for the document.

distanceThreshold?: number;

Specifies a threshold for which no less similar documents will be returned. The behavior of the specified distanceMeasure will affect the meaning of the distance threshold.

• For distanceMeasure: "EUCLIDEAN", the meaning of distanceThreshold is: SELECT docs WHERE euclidean_distance <= distanceThreshold - For distanceMeasure: "COSINE", the meaning of distanceThreshold is: SELECT docs WHERE cosine_distance <= distanceThreshold - For distanceMeasure: "DOT_PRODUCT", the meaning of distanceThreshold is: SELECT docs WHERE dot_product_distance >= distanceThreshold

Specifies the upper bound of documents to return, must be a positive integer with a maximum value of 1000.

queryVector: firestore.VectorValue | Array<number>;

The VectorValue used to measure the distance from vectorField values in the documents.

vectorField: string | firestore.FieldPath;

A string or FieldPath specifying the vector field to search on.

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Last updated 2025-08-07 UTC.

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